Installed 1/2-3/8 reducer in "to engine" hard point in sump. Reinstalled sump. Finished 1/2 " fuel line from Copilot tank to sump. Installed 1/2 inch line from sump to engine with a shutoff valve. Positioned shutoff valve so that it can be cable operated with a pull cable to be installed on pilots sidewall. Installed vent lines so that that they made a constant "rise" to the four way manifold while at the same time conserving as much real estate as possible on the firewall for future component installation